A substance has a half-life of 100,000 years and an initial mass of 1,000 grams. how many years will pass before only 250 grams of the substances parent material is left?

In living organisms, lipids are used for O A. Quick energy O B. Transport O C. Insulation

You are walking to school when you encounter a strange barking dog. you tense up and contemplate whether you should run away. which nervous system is responsible for this "fight or flight" reaction?

In people, brown hair (B) is dominant over red hair (b). If a husband is Bb and his wife is bb, what is the probability that their first baby will have red hair?

When ATP loses a phosphate, energy is released and is formed.

What are the four classes of carbon containing molecules used by living things?

Which best describes a difference between cloning plants and selectively breeding plants? A. Cloning requires two parents and selective breeding requires one parent. B. Cloning results in a genetically identical plant and selective breeding does not.

A cook adds oil to vinegar and then mixes it to make a sald dressing. Is this a physical change? Why or why not?

Fossilized evidence of Earth's first forms of life would consist of a. vertebrates from the Precambrian b. invertebrates from the Precambrian c. eukaryotes from the Precambrian d. prokaryotes from the Precambrian

A) Chromosomes pair in step 2. B) Chromatids separate in step 5. C) Chromosomes are replicated in step 1. D) Chromosomes exchange genetic material in step 3.

The climate with which the monsoon forest is best associated with is